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Thu Sep 15 15:57:07 CEST 2005. The previous history can be added to this by grafting.
264 lines
6.9 KiB
C
264 lines
6.9 KiB
C
/* Implementation of the bindtextdomain(3) function
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Copyright (C) 1995-1998, 2000, 2001 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include "elinks.h"
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#include "intl/gettext/libintl.h"
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#include "intl/gettext/gettextP.h"
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#include "util/string.h"
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/* Contains the default location of the message catalogs. */
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extern const unsigned char _nl_default_dirname__[];
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/* List with bindings of specific domains. */
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extern struct binding *_nl_domain_bindings__;
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/* Prototypes for local functions. */
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static void set_binding_values(const unsigned char *domainname,
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const unsigned char **dirnamep,
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const unsigned char **codesetp);
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/* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP
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to be used for the DOMAINNAME message catalog.
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If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not
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modified, only the current value is returned.
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If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither
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modified nor returned. */
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static void
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set_binding_values(const unsigned char *domainname,
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const unsigned char **dirnamep,
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const unsigned char **codesetp)
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{
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struct binding *binding;
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int modified;
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/* Some sanity checks. */
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if (domainname == NULL || domainname[0] == '\0') {
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if (dirnamep)
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*dirnamep = NULL;
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if (codesetp)
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*codesetp = NULL;
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return;
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}
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modified = 0;
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for (binding = _nl_domain_bindings__; binding != NULL;
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binding = binding->next) {
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int compare = strcmp(domainname, binding->domainname);
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if (compare == 0)
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/* We found it! */
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break;
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if (compare < 0) {
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/* It is not in the list. */
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binding = NULL;
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break;
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}
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}
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if (binding != NULL) {
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if (dirnamep) {
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const unsigned char *dirname = *dirnamep;
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if (dirname == NULL)
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/* The current binding has be to returned. */
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*dirnamep = binding->dirname;
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else {
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/* The domain is already bound. If the new value and the old
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one are equal we simply do nothing. Otherwise replace the
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old binding. */
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unsigned char *result = binding->dirname;
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if (strcmp(dirname, result) != 0) {
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if (strcmp(dirname, _nl_default_dirname__)
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== 0)
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result = (unsigned char *)
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_nl_default_dirname__;
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else {
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result = strdup(dirname);
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}
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if (result != NULL) {
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if (binding->dirname !=
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_nl_default_dirname__)
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free(binding->dirname);
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binding->dirname = result;
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modified = 1;
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}
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}
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*dirnamep = result;
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}
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}
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if (codesetp) {
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const unsigned char *codeset = *codesetp;
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if (codeset == NULL)
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/* The current binding has be to returned. */
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*codesetp = binding->codeset;
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else {
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/* The domain is already bound. If the new value and the old
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one are equal we simply do nothing. Otherwise replace the
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old binding. */
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unsigned char *result = binding->codeset;
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if (result == NULL
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|| strcmp(codeset, result) != 0) {
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result = strdup(codeset);
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if (result != NULL) {
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if (binding->codeset != NULL)
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free(binding->codeset);
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binding->codeset = result;
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binding->codeset_cntr++;
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modified = 1;
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}
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}
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*codesetp = result;
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}
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}
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} else if ((dirnamep == NULL || *dirnamep == NULL)
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&& (codesetp == NULL || *codesetp == NULL)) {
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/* Simply return the default values. */
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if (dirnamep)
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*dirnamep = _nl_default_dirname__;
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if (codesetp)
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*codesetp = NULL;
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} else {
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/* We have to create a new binding. */
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size_t len = strlen(domainname) + 1;
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struct binding *new_binding =
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(struct binding *)
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malloc(offsetof(struct binding, domainname) + len);
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if (new_binding == NULL)
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goto failed;
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memcpy(new_binding->domainname, domainname, len);
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if (dirnamep) {
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const unsigned char *dirname = *dirnamep;
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if (dirname == NULL)
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/* The default value. */
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dirname = _nl_default_dirname__;
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else {
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if (strcmp(dirname, _nl_default_dirname__) == 0)
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dirname = _nl_default_dirname__;
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else {
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unsigned char *result;
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result = strdup(dirname);
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if (result == NULL)
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goto failed_dirname;
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dirname = result;
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}
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}
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*dirnamep = dirname;
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new_binding->dirname = (unsigned char *) dirname;
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} else
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/* The default value. */
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new_binding->dirname = (unsigned char *) _nl_default_dirname__;
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new_binding->codeset_cntr = 0;
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if (codesetp) {
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const unsigned char *codeset = *codesetp;
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if (codeset != NULL) {
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unsigned char *result;
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result = strdup(codeset);
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if (result == NULL)
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goto failed_codeset;
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codeset = result;
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new_binding->codeset_cntr++;
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}
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*codesetp = codeset;
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new_binding->codeset = (unsigned char *) codeset;
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} else
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new_binding->codeset = NULL;
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/* Now enqueue it. */
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if (_nl_domain_bindings__ == NULL
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|| strcmp(domainname, _nl_domain_bindings__->domainname) < 0)
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{
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new_binding->next = _nl_domain_bindings__;
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_nl_domain_bindings__ = new_binding;
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} else {
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binding = _nl_domain_bindings__;
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while (binding->next != NULL
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&& strcmp(domainname,
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binding->next->domainname) > 0)
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binding = binding->next;
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new_binding->next = binding->next;
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binding->next = new_binding;
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}
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modified = 1;
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/* Here we deal with memory allocation failures. */
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if (0) {
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failed_codeset:
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if (new_binding->dirname != _nl_default_dirname__)
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free(new_binding->dirname);
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failed_dirname:
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free(new_binding);
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failed:
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if (dirnamep)
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*dirnamep = NULL;
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if (codesetp)
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*codesetp = NULL;
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}
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}
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/* If we modified any binding, we flush the caches. */
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if (modified)
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++_nl_msg_cat_cntr;
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}
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/* Specify that the DOMAINNAME message catalog will be found
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in DIRNAME rather than in the system locale data base. */
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unsigned char *
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bindtextdomain__(const unsigned char *domainname, const unsigned char *dirname)
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{
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set_binding_values(domainname, &dirname, NULL);
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return (unsigned char *) dirname;
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}
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/* Specify the character encoding in which the messages from the
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DOMAINNAME message catalog will be returned. */
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unsigned char *
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bind_textdomain_codeset__(const unsigned char *domainname, const unsigned char *codeset)
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{
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set_binding_values(domainname, NULL, &codeset);
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return (unsigned char *) codeset;
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}
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